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Date: Fri, 16 Sep 2016 00:55:13 +0800
From: kbuild test robot <lkp@intel.com>
To: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: kbuild-all@01.org, benh@kernel.crashing.org, mpe@ellerman.id.au,
 linuxppc-dev@lists.ozlabs.org,
 Madhavan Srinivasan <maddy@linux.vnet.ibm.com>, paulus@samba.org,
 anton@samba.org, npiggin@gmail.com
Subject: Re: [PATCH 13/13] powerpc: rewrite local_t using soft_irq
Message-ID: <201609160048.vfgWdJuW%fengguang.wu@intel.com>
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Hi Madhavan,

[auto build test ERROR on v4.8-rc6]
[cannot apply to powerpc/next kvm-ppc/kvm-ppc-next mpe/next next-20160915]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url:    https://github.com/0day-ci/linux/commits/Madhavan-Srinivasan/powerpc-paca-soft_enabled-based-local-atomic-operation-implementation/20160915-215652
config: powerpc-allnoconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 5.4.0-6) 5.4.0 20160609
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

   In file included from include/linux/perf_event.h:57:0,
                    from include/linux/trace_events.h:9,
                    from include/trace/syscall.h:6,
                    from include/linux/syscalls.h:81,
                    from init/main.c:18:
   arch/powerpc/include/asm/local.h: In function 'local_add':
>> arch/powerpc/include/asm/local.h:25:2: error: implicit declaration of function 'local_irq_pmu_save' [-Werror=implicit-function-declaration]
     local_irq_pmu_save(flags);
     ^
>> arch/powerpc/include/asm/local.h:32:2: error: implicit declaration of function 'local_irq_pmu_restore' [-Werror=implicit-function-declaration]
     local_irq_pmu_restore(flags);
     ^
   cc1: some warnings being treated as errors

vim +/local_irq_pmu_save +25 arch/powerpc/include/asm/local.h

    19	
    20	static __inline__ void local_add(long i, local_t *l)
    21	{
    22		long t;
    23		unsigned long flags;
    24	
  > 25		local_irq_pmu_save(flags);
    26		__asm__ __volatile__(
    27		PPC_LL" %0,0(%2)\n\
    28		add     %0,%1,%0\n"
    29		PPC_STL" %0,0(%2)\n"
    30		: "=&r" (t)
    31		: "r" (i), "r" (&(l->a.counter)));
  > 32		local_irq_pmu_restore(flags);
    33	}
    34	
    35	static __inline__ void local_sub(long i, local_t *l)

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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